International journal of industrial engineering and operational research

Examining the Dimensions of Future Hospital Development in Iran with Intelligentization Approach

2024-11-06T17:13:01+0330

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Designing a Model for the Implementation and Deployment of Quality 4.0 Using an Integrated Approach: Delphi Technique and Structural Equation Modeling in a Research Industrial Organization

2024-11-09T12:14:55+0330

The aim of this research is to create a framework for assessing the factors that contribute to successful implementation of Quality 4.0 in research industries. Initially, ten drivers were identified through a literature review. Then, significant indicators were determined using expert opinions and the Delphi technique. To evaluate the model's fit and the impact of each component, structural equation modeling(SEM) and associated tools, including measurement model fit, structural model fit, and overall model fit, were used. A 34-question questionnaire on a five-point Likert scale was designed for this purpose. The study included 155 managers and employees from research industries, with a sample size of 110 individuals determined using Cochran's formula and distributed through convenience sampling. Qualitative findings led to the identification of 12 main components, which were refined to reach expert consensus using a three-stage Delphi technique. The results from the fitted structural model revealed the high impact of the following components in order: financial resources, leadership, technological infrastructure, big data control, organizational agility, employee cooperation, rewards, organizational culture, management systems focused on program development, training, vision, and employee competence and skills. This research addresses the knowledge gap in the implementation of Quality 4.0 within research industries.

The Impact of Inflation on Inequality and Income Distribution in Iran by Emphasizing Expenditure Centile

2024-11-11T14:15:18+0330

This paper assesses the significance of the impact of seigniorage (the income generated by the government through money printing, which is a crucial pathway for inflation due to budget deficits covered by money printing, leading to inflationary taxation) and inflationary tax on inequality, using a combined model from 1996 to 2023. It highlights the varying effects of inflation on different income groups, particularly the role of government income from money creation in exacerbating inequality. The results indicate that seigniorage increases inequality, as it affects income groups differently, with lower-income groups being more vulnerable than higher-income groups. Consequently, an increase in inflationary taxation further heightens inequality.

A Supply Chain Network Design by Considering Resiliency, Sustainability and Agility Approach in Home Appliances

2024-11-27T19:34:38+0330

The Supply Chain Network Design (SCND) is crucial for enhancing the efficiency and effectiveness of operations in the home appliances industry. This study presents a mathematical model for designing a supply chain network that integrates sustainability, agility, and resiliency principles. These principles aim to optimize supply chain performance while considering environmental impact, responsiveness to changes, and the ability to recover from disruptions. The model incorporates multi-objective optimization techniques to balance economic, environmental, and social goals. A case study based on the home appliances industry is used to demonstrate the practical application of the model. Results indicate that the proposed model improves operational performance, reduces carbon emissions, and enhances the supply chain's resilience to disruptions.

A review of an efficient algorithm for solving linear semi-infinite optimization

2025-01-13T12:49:10+0330

In this paper, we try to introduce an interior point constraint generation (IPCG) algorithm for semi-infinite linear optimization that has a faster convergence than other algorithms. We will convert the semi-infinite optimization problem to the finite linear optimization problem using discretization, and we will convert the linear problem to the nonlinear problem using the barrier function. In each iteration, we find a point near the central path. We identify the finite number of the constraints violated at the mentioned point from the feasibility set of the semi-infinite problem. We update the feasible region and the barrier parameter simultaneously. We are improving the feasible point for the new feasible region and updating the central path; then, we use the Newton method to find a point in the vicinity of the new central path. We continue this process until the barrier parameter reaches the desired accuracy. Numerical results show that this algorithm has better speed and accuracy than others.

From Behavior to Performance: Exploring the Link Between Individual Financial Literacy, Risk Perception, and Investment Decisions

2025-02-26T10:00:49+0330

This study examines the relationship between individual financial behavior, risk perception, and investment decisions, focusing on the mediating role of financial literacy. Using a quantitative approach, data were collected from 217 investors in companies listed on the Tehran Stock Exchange. Structural Equation Modeling (SEM) was employed to analyze the direct and indirect effects of financial behaviour, overconfidence, and risk perception on investment decisions, with financial literacy as a mediating variable. The findings reveal that individual financial behaviour, overconfidence, and risk perception significantly influence direct and indirect investment decisions. Financial literacy partially mediates these relationships, highlighting its importance in bridging psychological factors and investment outcomes. The study emphasizes the need for enhancing financial literacy to mitigate the adverse effects of behavioural biases, such as overconfidence and risk misperception, thereby promoting more informed and effective investment decisions. The research contributes to the theoretical understanding of behavioural finance by elucidating the psychological mechanisms underlying investment decisions. It also offers practical insights for financial advisors, wealth managers, and policymakers, emphasizing the need for educational programs and interventions to improve financial literacy and decision-making. Recommendations for future research include exploring additional behavioural financial factors, cultural differences, and the impact of different investment types on risk perception and decision-making. By addressing these gaps, future studies can further advance the understanding of financial behaviour and its implications for investment performance.